Investigation of gas/shear-thinning liquids flow at high throughput in microchannels with the aim of producing biosourced foam

•Design of a foaming process by using microchannels for food or cosmetic applications.•Test of two cross slot microsystems at high biphasic throughput (QL = 4.2−24 L/h).•Presentation of flowcharts for nitrogen dispersed in aqueous xanthan gum solutions.•Characterization of genesis of bubble and bubble distribution along the channel.•Tip streaming phenomenon is observed in the microchannel.